Oil-burner.



B. J. LATSHAW.

OIL BURNER.

APPLICATION FILED APR.2B,1916.

Patented Feb. 20, 1917.

W W m m,

WITNESSES.

A TTORIVE Y8 BENJAMIN JOHN LATSHAW, OF BURKBURNETT, TEXAS.

OIL-BURNER.

Specification of Letters Patent.

Patented Feb. 20, 1917.

Application filed April 28, 1916. Serial No. 94,192.

To all whom it may concern:

Be it known that I, BENJAMIN J. LAT- SHAW, a citizen of the United States, and a resident of Burkburnett, in the county of Wichita and State of Texas, have invented certain new and useful Improvements in Oil-Burners, of which the following is a specification.

My invention is an improvement in oil burners, and the invention has for its object to provide a simple, inexpensive, but eflicient burner of the character specified, wherein mechanism is provided for spraying a mixture of steam and oil into the flirnace, in such manner that the oil and steam will be thoroughly mixed and atomized before it is delivered to the furnace.

In the drawing:

Figure 1 is a side view of the improved burner with parts in section,

Fig. 2 is a vertical sectional view through the burner and the spraying device,

Fig. 3 is a section on the line 3-3 of Fig. 2, looking in the direction of the arrows adjacent to the line,

Fig. 4 is a perspective view head.

The present embodiment of the invention is shown in connection with a wall of the furnace 1, the said wall having an internally threaded opening 2, which is engaged by the threaded end of a pipe 3. A locking nut 4 is threaded onto the pipe at the opening, and a mixing mechanism is connected with the outer end of the pipe 3.

The said mechanism comprises a T 5, the T having one end connected with the pipe 3, and a steam pipe 6 is connected with the other end of the T. An oil feed pipe 7 is connected with the lateral branch of the T, and it will be noticed that the steampipe is of qsnialler diameter than either the pipe 3 or The pipe 6 has an enlarged head 8 which engages the end opening of the T, and the end of the pipe 6 and the head are internally threaded to receive one end of a pipe 9. This pipe 9 is threaded for a considerable distance into the pipe 6, and it is of a length suflicient to extend entirely through the T and slightly beyond the opposite end thereof that is the end adjacent to the pipe 3.

The pipe 9 is enough smaller than the interior of the pipe 3, to provide an annular passage between the said pipes, and it will be evident that when the steam is injected of the spray through the pipe 9, a current will be created and the oil fed through the pipe 7 will be carried with the steam into the furnace. The pipe 3 is in practice, about eighteen inches in length, so that the steam and the fuel must travel this distance in intimate contact. ,7

A spray head of particular form is provided at the outlet end of the pipe 3. This head may be formed from Babbitt metal or the like and is in the form of a split ring 10 having thickened or enlarged portions 11, at opposite sides of the ring. The inner faces of these thickened portions 11 are plane, as shown, so through the spray head is approximately square, and the spray head is so arranged that the thickened portions 11 are at the top and the bottom of the pipe 3. The ring is also cut away between the enlargements as shown in Fig. 4, at each end, so that the ends of the thickened portions extend be yond the ends of the ring proper.

In operation, the oil is fed in any suitable or desired manner through the pipe 7, and

when the steam is turned on through the pipe 6, the mixed oil and steam will be fed through the spray head into the furnace. Because of the fact that the mixed oil and steam must travel for a comparatively long distance in intimate contact, the oil will be thoroughly cut up and atomized, and in addition it, will be heated to the same temperature as the steam and will be delivered to the furnace in the form of a highly heated spray, in the best possible condition for quick combustion.' Practically all of the oil is gasified before it is delivered into the furnace. It will be evident that the thickening 0f the ring 10, reduces the bore of the said ring, and the ring as a whole, reduces the bore of the mixing pipe 3.

I claim:

1. An oil burner comprising a mixing and delivery pipe adapted to open at one end into the furnace and having at the other end a T, a fiuid'fuel supply pipe connected with the lateral branch of the T, a steam pipe connected with the other end of the T in alinement with the mixing pipe, and having a delivery nozzle detachably connected therewith and extending through the T and into the mixing pipe, said mixing pipe being of comparatively great length, to provide for a comparatively long travel of the steam and oil in intimate contact, and a that the opening' spray head in the delivery end of the mixfuel supply pipe, the steam pipe having ing pipe, said spray head being a split ring a delivery nozzle extending beyond the having oppositely arranged thickened porlateral branch, said mixing pipe being of tions making the bore of the head approXicomparatively great length to provide for 5 mately square in cross section. a relatively long travel of the steam and 15 2. An oil burner comprising a mixing and fuel in intimate contact, and a spray head delivery pipe adapted to open at one end in the delivery end of the mixing pipe and into a furnace, and having connected With comprising a split ring having oppositely the other end a steam supply pipe, and thickened portions.

10 having a lateral branch forming a fluid 1; BEN. JOHN LATSHAW. 

